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Laser Ablation of Metals by Low-Density Picosecond Pulses

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Abstract

Thresholds of laser ablation ofmetals for the picosecond range of laser pulse duration are determined. Within the two-temperature metal model, the space-time dependences of the electron and lattice temperature are obtained. It is shown that ablation parameters become dependent on the pulse duration at the pulse duration τ p ≥ τ ie , where τ ie is the cooling time of the electron gas. For noble metals, such pulse durations are τ p ≈ 3 − 10 ps.

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Authors and Affiliations

  1. National Research Nuclear University “MEPhI”, Kashirskoe sh. 31, Moscow, 115409, Russia

    I. N. Zavestovskaya & A. P. Kanavin

  2. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    I. N. Zavestovskaya & A. P. Kanavin

Authors
  1. I. N. Zavestovskaya
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  2. A. P. Kanavin
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Correspondence to A. P. Kanavin.

Additional information

Original Russian Text © I.N. Zavestovskaya, A.P. Kanavin, 2018, published in Kratkie Soobshcheniya po Fizike, 2018, Vol. 45, No. 1, pp. 73–78.

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Zavestovskaya, I.N., Kanavin, A.P. Laser Ablation of Metals by Low-Density Picosecond Pulses. Bull. Lebedev Phys. Inst. 45, 6–9 (2018). https://doi.org/10.3103/S1068335618010025

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  • DOI: https://doi.org/10.3103/S1068335618010025

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